Ozone is O3, a molecule made up of three oxygen atoms. Ozone is a gas that is low density and colorless under normal temperature. If its density reaches a specific level it will have a the scent of fresh grass and will be pale blue. The air is very fresh, especially after heavy rain, and that is a smell of ozone air. You can smell the same scent when you are in a forest, under a rainfall, and around the seaside or river.
& dolphin; คือโปรแกรมจัดการแฟ้มสําหรับ & kde; ซึ่งถูกออกแบบมาโดยเน้นที่การใช้งานscb_mt_enth_2020 scb_mt_enth_2020